Imagine a crocodile built like a greyhound—that's a sebecid. Standing tall, with some species reaching 20 feet in length, ...

Researchers analyzed 131 fossilized impressions on the Isle of Skye, some of which were previously considered fish burrows ...

They represented a wide range in size, diet and habitat and were notably ... The sebecids acted like carnivorous dinosaurs, sprinting after prey on their four long, agile limbs and tearing through ...

And the teeth of sebecids were tall and narrow with fine serrations running along the edges for cutting through meat, also similar to carnivorous dinosaurs. Like many other crocs, they had ...

These include a Spinosaurus - the largest carnivorous dinosaur to ever walk the earth - roaming the rivers of ancient Morocco; a youthful Triceratops battling a ravenous T. rex in North America ...